Phylum Chordata Bateson, 1885 - chordates
   Subphylum Vertebrata Cuvier, 1812 - vertebrates
     Superclass Pisces Linnaeus, 1758 - fishes
       Osteichthyes Huxley, 1880 - bony fishes see [unranked] Euteleostomi
         Family Ophichthidae Günther, 1870 - snake eels and worm eels
           1 Genus Myrichthys Girard, 1859
           2 Genus Leiuranus Bleeker, 1853
           3 Genus Ophichthus Ahl, 1789
           4 Genus Brachysomophis Kaup, 1856